package pers.jason.wppm.security.controller;

import java.io.IOException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.savedrequest.HttpSessionRequestCache;
import org.springframework.security.web.savedrequest.RequestCache;
import org.springframework.security.web.savedrequest.SavedRequest;
import org.springframework.social.connect.Connection;
import org.springframework.social.connect.web.ProviderSignInUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestController;

import org.springframework.web.context.request.ServletWebRequest;
import pers.jason.wppm.security.support.SimpleResponse;
import pers.jason.wppm.security.support.SocialUserInfo;
import pers.jason.wppm.security.core.properties.SecurityProperties;

/**
 * 
 * @author Jason
 * @Date 2018-10-26 17:07
 *
 */
@RestController
public class AuthenticationController {
	
	private Logger logger = LoggerFactory.getLogger(getClass());
	
	private RequestCache requestCache = new HttpSessionRequestCache();
	
	private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

	@Autowired
	private SecurityProperties securityProperties;

	@Autowired
	private ProviderSignInUtils providerSignInUtils;

	/**
	 * 需要身份认证的时候跳转到这里
	 * @param request
	 * @param response
	 * @throws IOException 
	 */
	@GetMapping("/authentication/page")
	@ResponseStatus(code = HttpStatus.UNAUTHORIZED) //401
	public SimpleResponse toLoginPage(HttpServletRequest request, HttpServletResponse response) throws IOException {
		SavedRequest savedRequest = requestCache.getRequest(request, response);
		if(null != savedRequest) {
			String targetUrl = savedRequest.getRedirectUrl();
			logger.info("引发登录跳转的请求是：" + targetUrl);
			if(StringUtils.endsWithIgnoreCase(targetUrl, ".html")) {
				redirectStrategy.sendRedirect(request, response, securityProperties.getBrowser().getLoginPage());
			}
		}
		return SimpleResponse.createSuccessResponse("需要身份认证");
	}

	@GetMapping("/social/user")
	public SocialUserInfo getSocialUserInfo(HttpServletRequest request) {
		Connection connection = providerSignInUtils.getConnectionFromSession(new ServletWebRequest(request));
		SocialUserInfo socialUserInfo = new SocialUserInfo(connection);
		return socialUserInfo;
	}

}
